Вид документа : Статья из журнала Шифр издания : 53/K 79 Автор(ы) : Koverda V. P., Skokov V. N. Заглавие : Low-frequency fluctuations in stochastic processes with a 1/f α spectrum Место публикации : Technical Physics. - 2009. - Vol.54, №6. - С. 770-774 ББК : 53 Предметные рубрики: ФИЗИКА Ключевые слова (''Своб.индексиров.''): low-frequency fluctuations--stochastic processes --1/f(альфа)-спектр Аннотация: The results of numerical analysis of the Brownian movement of a particle in the force field of the potential corresponding to interacting subcritical and supercritical phase transitions are considered. If the white noise intensity corresponds to the critical intensity of the noise-induced transition, the system of stochastic differential equations describes random steady-state processes with fluctuation power spectra inversely proportional to frequency f, S(f) 1/f α, where exponent α varies in the interval 0.8 ≤ α ≤ 1.8. Exponent β of distribution function P(τ) τ-β for the duration of low-frequency extremal fluctuations, which are analogous to avalanches considered in the models of self-organized criticality in many respects, varies between the same limits. It is shown that exponents α and β are connected through the relation α + β = 2 Доп.точки доступа: Skokov, V. N.; Скоков Вячеслав Николаевич; Коверда Владимир Петрович